Physics Calculators
29 calculatorsExplore the fundamental laws of nature with calculators for motion, energy, forces, waves, electricity, and thermodynamics.
29 calculators available
Mechanics(13)↑ top
Acceleration Calculator
Calculate acceleration from initial velocity, final velocity…
Centripetal Force Calculator
Calculate centripetal force, velocity, or radius for circula…
Engine Horsepower Calculator
Compute engine horsepower from torque and RPM in seconds. Wo…
Force Calculator
Calculate force, mass, or acceleration using Newton's second…
Friction Calculator
Calculate friction force using F_f = μN. Enter the coefficie…
Gravitational Force Calculator
Calculate the gravitational force between two masses using N…
Hooke's Law Calculator
Calculate the force exerted by a spring using Hooke's Law: F…
Horsepower Calculator
Convert torque and RPM to horsepower in seconds. Works for c…
Kinetic & Potential Energy Calculator
Calculate kinetic, gravitational potential, and elastic pote…
Momentum Calculator
Calculate the linear momentum of an object using p = mv. Ent…
Projectile Motion Calculator
Calculate range, maximum height, time of flight, and impact …
Torque Calculator
Calculate torque, force, or moment arm using the torque equa…
Work Calculator
Calculate work done by a force using W = Fd cosθ. Enter forc…
Electricity & Magnetism(5)↑ top
Battery Life Calculator
Estimate how long a battery lasts under a given load, or fin…
Capacitor Calculator
Decode EIA capacitor codes into capacitance, convert values …
Ohms Law Calculator
Solve for voltage, current, resistance, or power using Ohm's…
Resistor Calculator
Decode 4, 5, and 6-band resistor color codes into ohms, tole…
Voltage Drop Calculator
Calculate voltage drop for copper or aluminum wire in single…
Audio(1)↑ top
Properties of Matter(2)↑ top
Electricity & Circuits(1)↑ top
Relativity(1)↑ top
Astrophysics(2)↑ top
Fluid Mechanics(1)↑ top
Thermodynamics(1)↑ top
Waves & Optics(2)↑ top
Frequently Asked Questions
- ❓ What is kinetic energy?
- ✅ Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 m v², where m is mass and v is velocity. It increases with the square of speed.
- ❓ How do I calculate force?
- ✅ Force equals mass times acceleration (F = m a), Newton's second law. It is measured in newtons (N), where 1 N = 1 kg·m/s².
- ❓ What is the difference between speed and velocity?
- ✅ Speed is a scalar quantity (how fast), while velocity is a vector that also includes direction. An object moving in a circle at constant speed has changing velocity.